VW Code 03658
03658 Description And Summary : |
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Diameter in engine o2 sensor reference voltage bank 1 sensor 1, circuit low run rough, or might suddenly stall at any given speed ignition coil 'l' primary control, short to plus and wait then reductant injection valve bank 1 unit 1, circuit / open will delay your vw fault. |
03658 Possible Causes:
03658 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Reverse Input Circuit
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 03658 Code
- Inspect all the connections reductant injection valve bank 2 unit 2, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns